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Part 4: Troubleshooting
4-6
Fig. 4-2 Video signal processing diagram
DGB0-9
3
1
5
22
8
16
18
20
IC5241
A
V/PC-RGB-SW
A
V
/PC
PC
: H
AV
: L
IC5271
IC5281
IC5291
2
13
12
1
10 11
14
15
IC8001
DV
I
I/F
DV
I
DIGIT
A
L
ANALOG
RGB
H-SYNC
V
-SYNC
IC5211
RGB-AMP
.
IC6211
IC6221
IC6241
SYNC DET
.
1
5
12
8
IC6251
INVER
TER
IC6101
INVER
TER
2
3
5
11
13
2
5
7
15
12
10
IC5251
A
V/PC
SYNC-SW
5
2
6
3
IC6271
B
UFFER
HAFC
IC251
TP52R
TP52B
TP52G
TP201R
TP201B
TP201G
TP205
HSYNC
IC201
A/D
22
40
7
15
TP62H
TP62V
GB00-7
GBE0-7
GG00-7
GGE0-7
GR00-7
GRE0-7
HS
VS
48
|
46
10
|
77
D_BE0-7
D_B00-7
D_GE0-7
D_G00-7
D_RE0-7
D_R00-7
IC8081
B
UFFER
2
4
6
16
18
GHS
GVS
80
|
90
PX+-, CLK, D
AT
A
H
V
IC4101
RGB
MA
TRIX
A
V
/PC
66
55 56
65
29
28
69
68
67
73
74
75
HS_OUT
VS_OUT
HD_HSYNC
HD_VSYNC
A
V_HSYNC
A
V_VSYNC
IC1101
VIDEO
DECODER
9
13 14
4
21
22
23
43
44
17
18
19
7
5
S_SW
Y/C
Cr_SW
TP11SC
TP11SY
TP11PR
TP11PB
TP11CV
Cb_SW
IC2101
DIGIT
AL
COMB
FIL
TER
9
7
2
IC5161
C_SWIN
2
5
12
1
3
13
15
14
9,10
4
39
37
35
IC3101
BLANKING
IC3121
IC2131
IC3141
A
V
-RGB
IC2161
D/A
IC2181
I/O
BLANK_SW
A
V/PC
SYNC_SW
BLKC_DC
C_SWIN
S_SW
7
8
IC1401
DIGIT
AL
BRIGHTER
CONTR
OL
DB0-9
DG0-9
DR0-9
DGB0-9
DGA0-9
DRA0-9
5,4
9,1
TPDHS
TPD
VS
TPCLK
DCLK
TURBO_1
DBB0-9
DRB0-9
VIDEO/Y
Pb/Cb
Pr/Cr
IC1581
D/A
IC2571
D/A
TP25G1
TP25G2
TP25B1
TP25B2
TP25R1
TP25R2
IC3551
NRS
3
6
IC3581
NRS
3
7
NRS
VCOM
RGT
DW
N
B-LCD
P
ANEL
G-LCD
P
ANEL
R-LCD
P
ANEL
4,5,6
8
9,18,19
7
13
11
12
IC531
IC1531
S&H_G
IC401
DIGIT
AL
COLOR
UNIFORMITY
CORRECTION
TIMING
CONTR
OL
6,7
13
IC501
IC1501
S&H_B
SCL2_5
SD
A2_5
IC801
SUB
CPU
79,78
IC561
IC1561
S&H_R
IC3501
B_LEVEL
SHIFT
IC3531
G_LEVEL
SHIFT
IC3561
R_LEVEL
SHIFT
22
22
IC301
SCAN
CONVER
TER
SYSTEM
CONTR
OL
323
244
240
133
34
133
34
12
10
R
G
B
R
G
B
IC6171
AFC
DET
13
1
16 17
2
13 11
1
5
4
8
12
10
DHS/D
VS
TP3551
TP3581
14
|
19
5
|
7
12
13
2
3
2
3
S-VIDEO
15
2
3
D
VI BO
ARD
A
V
BO
ARD
MAIN BO
ARD
K25B
K25G
K25R
K3V
K10V
K3T
K10T
K3U
K10U
9
|
38
3
7
11
15
16
39
41
51
52
49
50
45
46
35
36
33
34
19
20
R
H
H
Y/C
Y
Y
C
V
V
Pr
Cr
Cb
Cr
Pb
Cb
Y
CV/Y
CV
H
V
G
B
R
G
B
R
R
G
G
B
R
G
B
B
PC
: H
AV
: L
PC
: H
AV
: L
S-In:
H
Component-In:
H
Содержание LV-7545U
Страница 2: ...CANON Power Projector LV 7545E D78 5231 SERVICE SMANUAL ...
Страница 9: ......
Страница 10: ...Part 1 General Information ...
Страница 23: ...7 SUPPORTED COMPUTER SYSTEM MODE See the attached sheet Owner s Manual page 26 Part 1 General Information 1 13 ...
Страница 24: ......
Страница 25: ...Part 2 Repair Information ...
Страница 46: ...Part 3 Adjustment ...
Страница 69: ...Part 4 Troubleshooting ...
Страница 86: ...Part 4 Troubleshooting 4 17 BH3540 Volume Control IC1652 CXA2101AQ RGB Matrix IC4101 ...
Страница 87: ...Part 4 Troubleshooting 4 18 FA5332M P F Controller IC601 FA7612CA PWC Controller IC6602 IC6603 IC6616 ...
Страница 90: ...Part 4 Troubleshooting 4 21 LB1645 Motor Drive IC1601 LC863316 SUB CPU IC1851 ...
Страница 91: ...Part 4 Troubleshooting 4 22 ML60851 USB I F IC9801 M62393 D A IC212 IC2381 ...
Страница 92: ...Part 4 Troubleshooting 4 23 M62399 D A IC3501 IC3551 PW365 System Control Scan Converter IC301 ...
Страница 93: ...Part 4 Troubleshooting 4 24 SII161ACT DVI I F IC8001 STR Z2156 Power Switching IC651 ...
Страница 94: ...Part 4 Troubleshooting 4 25 TA1287 RGB YUV Converter IC4551 TB1274AF Video Decoder IC1101 ...
Страница 95: ...Part 4 Troubleshooting 4 26 TDA7056 Audio Output IC1631 IC1632 ...
Страница 96: ...Part 5 Parts Catalog ...
Страница 97: ......
Страница 101: ...62 54 63 53 62 58 61 64 56 59 70 71 52 55 65 Page 2 CANON LV 7545J REF No D78 5231 LV 7545U D78 5232 LV 7545E D78 5233 ...
Страница 105: ...Page 4 CANON LV 7545J REF No D78 5231 LV 7545U D78 5232 LV 7545E D78 5233 23 a 23 b 23 51 b 51 a 51 43 43 2 ...
Страница 113: ...Part 6 Electrical Diagrams ...
Страница 130: ......